The Arrow Thunder rear silencer with aluminium cover and steel end cap for the Yamaha WR 125, has a similar sound as the other available models. If you prefer a natural look and at the same time don't like the carbon end cap, you will enjoy this model. The silencer is not only equipped with EG-BE, but can also be easily connected to the original exhaust system as a slip-on version. And for those who are thirsty for a few extra performance points, we offer a special racing manifold (52003MI). This can also be used on the original exhaust system and increases the performance significantly and inexpensively.